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Empire of Liberty

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ISBN: 9783110657746 9783110653748 9783110653649 Year: Pages: 580 DOI: 10.1515/9783110657746 Language: German
Publisher: De Gruyter
Subject: Political Science --- History
Added to DOAB on : 2020-01-30 11:21:05
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Abstract

M. Michaela Hampf analyzes American history from the end of the Civil War to the epochal year 1898. She argues that the rise of the United States to become an imperial power had already begun in the years following 1865. The study takes new methodical approaches to explain America’s special path, drawing upon the theory of path-dependency.

Environmental Enrichment of Pigs

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ISBN: 9783039280780 9783039280797 Year: Pages: 174 DOI: 10.3390/books978-3-03928-079-7 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology --- Animal Sciences
Added to DOAB on : 2020-04-07 23:07:08
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Abstract

Pigs have a strong motivation to explore and root. In conventional pig husbandry systems, this need is difficult to fulfil, unless adequate enrichment materials are provided. This book summarises how enrichment strategies for pigs have evolved over the last few decades in different countries and provides a vast array of possibilities to enhance the exploratory needs of pigs. The role of enrichment material on avoidance of tail biting outbreaks or as an element triggering positive emotions in pigs is also discussed.

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De Gruyter (1)

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CC by-nc-nd (2)


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english (1)

german (1)


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2020 (2)